diff options
Diffstat (limited to 'tools/testing/selftests/bpf/verifier/d_path.c')
| -rw-r--r-- | tools/testing/selftests/bpf/verifier/d_path.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/tools/testing/selftests/bpf/verifier/d_path.c b/tools/testing/selftests/bpf/verifier/d_path.c new file mode 100644 index 000000000000..b988396379a7 --- /dev/null +++ b/tools/testing/selftests/bpf/verifier/d_path.c @@ -0,0 +1,37 @@ +{ + "d_path accept", + .insns = { + BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, 0), + BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), + BPF_MOV64_IMM(BPF_REG_6, 0), + BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_6, 0), + BPF_LD_IMM64(BPF_REG_3, 8), + BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_d_path), + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_EXIT_INSN(), + }, + .result = ACCEPT, + .prog_type = BPF_PROG_TYPE_TRACING, + .expected_attach_type = BPF_TRACE_FENTRY, + .kfunc = "dentry_open", +}, +{ + "d_path reject", + .insns = { + BPF_LDX_MEM(BPF_W, BPF_REG_1, BPF_REG_1, 0), + BPF_MOV64_REG(BPF_REG_2, BPF_REG_10), + BPF_ALU64_IMM(BPF_ADD, BPF_REG_2, -8), + BPF_MOV64_IMM(BPF_REG_6, 0), + BPF_STX_MEM(BPF_DW, BPF_REG_2, BPF_REG_6, 0), + BPF_LD_IMM64(BPF_REG_3, 8), + BPF_RAW_INSN(BPF_JMP | BPF_CALL, 0, 0, 0, BPF_FUNC_d_path), + BPF_MOV64_IMM(BPF_REG_0, 0), + BPF_EXIT_INSN(), + }, + .errstr = "helper call is not allowed in probe", + .result = REJECT, + .prog_type = BPF_PROG_TYPE_TRACING, + .expected_attach_type = BPF_TRACE_FENTRY, + .kfunc = "d_path", +}, |